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SubjectRe: pre5 VM livelock
On Tue, Oct 30, 2001 at 04:20:25PM -0500, Jeff Garzik wrote:
> 2.4.14-pre5 was looking very nice on my alpha, doing RPM builds. It
> seems to swap only when it needs to, and subjectively, performance
> appears better.
> However at this very moment, the kernel is livelocked. I can type on
> console and do sysrq to your heart's content... I can even sysrq-s and
> sync successfully. But no processing occurs. I can ping, but two ssh
> sessions are frozen.
> Key symptoms: Free swab 0Kb according to sysrq-m, and several processes
> in run state according to sysrq-t.
> Let me know if I should poke at this alpha further before rebooting.
> further info:
> free pages: 2560 kb (0kb highmem)
> ( active 2422 inactive 38578 free 320 )
> swap cache: add 850670 delete 850666 find 323063/440091 race 1+0
> free swap: 0kb
> 49074 pages of ram
> 786 free pages
> 1299 reserved pages
> 2683 pages shared
> 4 pages swap cached
> 4 pages in page table cache
> buffer memory: 168kb
> This behavior is reproducible, I am pretty sure.

can you reproduce with 2.4.14pre5aa1 too? The inactive list is pretty
big so maybe it's something else but maybe it's really mlocked anon

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